LFM

GPRS fundamental review

关于VLC中非线性研究的2011年到2016年的四篇文章，对于研究LED的非线性建模及相应的均衡计数有帮助！(Nonlinear Study on VLC 2011 to 2016 four articles for the study of nonlinear modeling and the corresponding LED equalizer count helpful!)

ZigBee 短距离、低速率无线网络技术快速入门指南(ZigBee short-range, low-rate wireless network technology, Quick Start Guide)

简单地绘制BOC（1, 1）调制信号的功率谱密度及其自相关函数曲线，仅供参考。(Simple drawing BOC (1, 1) density and autocorrelation function curve of power spectrum of the signal modulation, for reference only.)

MODBUS是工业领域通信协议的业界标准。这是周立功MODBUS的源码，适合应用和学习，需要的朋友可以看看。(MODBUS communication protocol is the industry standard in the industry. This is Zhou Ligong MODBUS source code, suitable for application and study, need friends can look at.)

单模光纤中相干接收QPSK信号应用了CMA算法的简单DSP示例，自带vpa仿真数据。(A simple DSP example of CMA algorithm is used to receive QPSK signals coherently in single-mode optical fibers, with VPA simulation data.)

说明：  载波同步是QPSK信号相干解调的一项关键技术。(Carrier synchronization signal coherent QPSK demodulation is a key technology.)

仿真图是速度、距离、幅度三维图像，插值与拟合的matlab实现，计算两个矩阵之间的欧氏距离。( FIG simulation speed, distance, amplitude three-dimensional image, Interpolation and fitting matlab implementation, Calculation of the Euclidean distance between the two matrices.)

说明：  用matlab进行语音信号的采集，处理，还原，仿真数字通信的过程。(Using MATLAB to collect, process, restore and simulate the process of digital communication.)

手机中利用二维码进行定位.（标记部分） 程序包括两个部分,这部分为标记部分,需两部分配合使用(Project Name:QR_CodeScan_Baoji Description:Mobile phone use qr code to locate (tag))